rgd1101 :
http://www.hardwaresecrets.com/datasheets/ALC887.pdf
said yes
Thats a datasheet of his adapter, not of his motherboard.
The audio adapter supports 7.1 but the motherboard by itself comes with ZERO ways to output 7.1.
You have no HDMI port so that is out, no optica/digital coax jacks (those cant handle 7.1 anyways but just stating), and you only have 3 audio ports so at best you can have 5.1 by using the mic and line in as outputs for the other speakers.
What exactly are you trying to send 7.1 audio to?